anjo-aladiah@Aladiah:~/Área de Trabalho/backports-3.19-rc1-1$ sudo make uninstall
[sudo] password for anjo-aladiah: 
find: "/home/anjo-aladiah/Área": Ficheiro ou directoria inexistente
find: "de": Ficheiro ou directoria inexistente
find: "Trabalho/backports-3.19-rc1-1": Ficheiro ou directoria inexistente
Note:
You may or may not need to update your initramfs, you should if
any of the modules installed are part of your initramfs. To add
support for your distribution to do this automatically send a
patch against "update-initramfs.sh". If your distribution does not
require this send a patch with the '/usr/bin/lsb_release -i -s'
("Ubuntu") tag for your distribution to avoid this warning.

Your backported driver modules should be uninstalled now.
Reboot.

anjo-aladiah@Aladiah:~/Área de Trabalho/backports-3.19-rc1-1$